Temper-screw bearing for walking-beams.



C.-M. HEETER. TEMPER SCREW BEARING ron WALKING BEAMS.

, APPLICATIC IN FILED SEPT- 14. l9l6. 1,2 0,025.

Patented Sept. 24, 1918.-

. excessive.

CHARLES M. HEETER, OF EUTLER, PENNSYLVA'IIL.

TEMPEK-SCBEW BEARING FOB WALKING-Ema.

Specification of Letters Patent.

Patented Sept. 24, 1918.

Application filed September 14, 1916. Serial No. 120,188.

To all whom it may concern:

Be it known that 1, CHARLES M. Hnn'rnn, a citizen of the United States, and resident of Butler, in the county of Butler and State of Pennsylvania, have invented certain new and useful Improvements in TempenScrew Bearings for VValking-Beams, of which the following is a specification.

With well drilling apparatus as now generally constructed and used the stern of the temper screw reins extends upwardly through .a slot in the end of the beam, and the T-headat the upper extremity of the stem bears in depressions formed in timber. With the head thus bearing directly on the wooden beam, the latter wears quite rapidly under the strain incident to raising the drilling tools at each upward stroke of the beam. As the weight of the tools ordinarily is in the neighborhood of 3,000 pounds, to which must be added the weight of the drilling cable and the clamps, the strain and wear are Also, with the beam slot unobis liable to become structed the temper screw when the drilldisconnected from the beam ing cable is slack.

One object of the present invention is to provide the beam with a temper screw bearing attachment which is adapted to be secured to the beam and relieve the latter of all wear. A further object is to provide removable means for closing the open end of the bearing plate slot so that the temper screw will be prevented from becoming disconnected when momentarily relieved of the weight of the tools.

In the accompanying drawings, Figure 1 is a side elevation of a walking beam equiped with the improved device and Fig 2 is a ront view of the same. Fig. 3 is a view in topxplan.

eferring to the drawings, 2 designates a portion of the walking beam of well drilling apparatus having at its forward end the vertical inwardly extending slot 3 to receive stem 4 of the temper screw reins 5. At the lower end of the latter is the split nut 6, and adjustable therethrough in the manner and for the purpose well known to the art is the temper screw 7 At the upper extremity of stem 4 is the 'T-head consisting of the oppositely extending bearing arms 4. i

Secured to the top the plate-like bearin inwardly from its surface of beam 2 is head 8 which is slotted rent end at 9 complebackwardly from mentary sides of slot 9 are the curved bearin seats 10 in which arms 4 of the'Thea rest. By this means, the wooden beamis relieved of the wear incident to lifting the tools and to the swinging move of the T-head thereon.

Seats 10 are spaced backwardly from the front or entrance end of slot 9, and head 8 at opposite sides of the slot is formed with lugs 11 having passages thus removably traverses slot 9 and pre vents stem 4 of the temper screw reins from jumping forwardly out of the beam slot during any instant when the temper screw is relieved of the weight of the tools. One or the other of nuts 12' may be removed from the bolt and the latter taken out whenever the temper screw is to be disconnected from the beam.

for bolt 12 whichwith beam slot 3. At opposite While the device of the present invention is of simple construction, it relieves the beam of all wear and renders it unnecessary to renewthe temper screw seat by deepeninglits slot 3 to afford a new location for the T- ead bearing head. With the beam unprotected as at present it is frequently nec essary to thus renew the seat, and this results in materially shortening the effective length of the beam and also result in moving the temper screw out of accurate alinement with the well being drilled.

I claim:

1. A temper screw bearing for a walkin beam slotted inwardly from its forward end to register with the walking beam slot, the bearing adapted to be secured to the top surface of t e beam and at opposite sides of the slot provided with seats to receive the temper screw head, the seats spaced the open end of the slot, and a device removably bridging the open end of the slot for preventing the temper screw from passing outwardly therethrough.

2. A temper screw bearing for a walking beam slotted rearwardly from its front end to register with the walking beam slot, the bearing adapted to besecured to the top of the beam and having seats at opposite sides of and spaced backwardly from the open end of the slot, the bearing atopposite sides of the slot and forwardly of the seats formed with bolt passages, and a slot-bridging bolt removably entered in saidpassages.

3. The combination of a walking beam having its forward end slotted vertically, a bearing plate secured to the top of the beam und slotted inwardly from its fmwvard'mnd "In testi'mon whereof I affix my signature complementary with ti-hel' bea'mxslmiiifiha plazte aliin presence-01 mvo witnesses;

provided at opposite sides of the slot with CHARLES M. HEETER.

bearing seats for a teml'ir i'eW"H:M-,"a1id WitneSses: 5 a deyi c g remg va bly tr aversil'lg the plate slot LOUISE SMITH, 

